水質(zhì)分析用標(biāo)準(zhǔn)溶液 cis-1,2-ジクロロエチレン (1mg/mL メタノール溶液) 化學(xué)特性,用途語,生産方法
外観
無色～わずかにうすい黃色, 澄明の液體
性質(zhì)
(Z)1,2-ジクロロエテン：融點(diǎn)－81.5 ℃，沸點(diǎn)60 ℃．d
15 1.291．n
25 1.4435．
溶解性
水に微溶 (5.6g/L), エタノール, エーテルに易溶。ヘキサンに溶ける。
用途
上水中等のcis-1,2-ジクロロエチレン定量における標(biāo)準(zhǔn)液調(diào)製用。
化學(xué)的特性
clear colorless liquid
使用
cis-1,2-Dichloroethylene (
cis-1,2-DCE) is generally used in the preparation of various enediynes for Bergman cyclization. Applications include the synthesis of:
- 2-(6-substituted 3(Z)-hexen-1,5-diynyl)anilines to prepare corresponding substituted carbazoles.
- (Z)-1-aryl-3-henen-1,5-diynes to obtain the corresponding aryl substituted benzotriazoles.
It is used as a linker to synthesize boron-dipyrromethene (BODIPY)-based photosensitizer for photodynamic therapy (PDT).
cis-1,2-DCE can also be used as a precursor to synthesize intermediates of sporolide B.
一般的な説明
A clear colorless liquid with an ether-like odor. Flash point 36-39°F. Denser than water and insoluble in water. Vapors heavier than air. Used in the making of perfumes.
空気と水の反応
Highly flammable.Slightly soluble in water.
反応プロフィール
1,2-DICHLOROETHYLENE and potassium hydroxide forms chloroacetylene, which is explosive and spontaneously flammable in air. CIS-1,2-DICHLOROETHYLENE is highly toxic, Rutledge, p134(1968).
健康ハザード
May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
火災(zāi)危険
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
安全性プロファイル
Mildly toxic by
ingestion and inhalation. In high
concentration it is irritating and narcotic.
Has produced liver and kidney injury in
experimental animals. Mutation data
reported. Sometimes thought to be
nonflammable, however, it is a dangerous
fire hazard when exposed to heat or flame.
Reaction with solid caustic alkalies or their
concentrated solutions produces
chloracetylene gas, whch ignites
spontaneously in air. Reacts violently with
N2O4, KOH, Na, NaOH. Moderate
explosion hazard in the form of vapor when
exposed to flame. Can react vigorously with
oxidizing materials. To fight fire, use water
spray, foam, CO2, dry chemical. When
heated to decomposition it emits toxic
fumes of Cl-. See also VINYLIDENE
CHLORIDE and CHLORINATED
HYDROCARBONS, ALIPHATIC.
職業(yè)ばく露
Primary irritant (w/o allergic reaction).
1,2-Dichloroethylene is used as a solvent for waxes, resins,
and acetylcellulose. It is also used in the extraction of rubber, as a refrigerant; in the manufacture of pharmaceuticals
and artificial pearls; and in the extraction of oils and fats
from fish and meat.
輸送方法
UN1150 Dichloroethylene, Hazard Class: 3;
Labels: 3-Flammable liquid.
純化方法
Purify it by careful fractional distillation, followed by passage through neutral activated alumina. Also by shaking with mercury, drying with K2CO3 and distilling from CaSO4. Stabilise it with 0.02% of 2,6-di-tert-butyl-p-cresol. [Beilstein 1 IV 707.]
不和合性
May form explosive mixture with air.
Attacks some plastics, rubber, and coatings. Incompatible
with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.);
contact may cause fires or explosions. Keep away from
alkaline materials, strong bases, strong acids, oxoacids, and
epoxides. Gradual decomposition results in hydrochloric
acid formation in the presence of ultraviolet light or upon
contact with hot metal or other hot surfaces. Reacts with
strong bases; potassium hydroxide; difluoromethylene,
dihypofluoride, nitrogen tetroxide (explosive); or copper
(and its alloys) producing toxic chloroacetylene which is
spontaneously flammable on contact with air. Attacks some
plastics and coatings.
廃棄物の処理
Incineration, preferably after
mixing with another combustible fuel. Care must be exercised to assure complete combustion to prevent the formation of phosgene. An acid scrubber is necessary to remove
the halo acids produced. Consult with environmental
regulatory agencies for guidance on acceptable disposal
practices. Generators of waste containing this contaminant
(≧100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.
水質(zhì)分析用標(biāo)準(zhǔn)溶液 cis-1,2-ジクロロエチレン (1mg/mL メタノール溶液) 上流と下流の製品情報(bào)
原材料
準(zhǔn)備製品